Finding the Fourth Proportional to 1,996.79, 2,755.58 and 1,112.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,996.79 : 2,755.58 = 1,112.77 : x
2. Step 2: Convert to fraction form
   1,996.79/2,755.58 = 1,112.77/x
3. Step 3: Cross multiply
   1,996.79x = 2,755.58 × 1,112.77
4. Step 4: Simplify right side
   1,996.79x = 3,066,314.30
5. Step 5: Solve for x
   x = 3,066,314.30/1,996.79
6. Step 6: Final answer
   x = 1,535.62